package com.wnxy.admin.controller;

import cn.hutool.json.JSONObject;
import com.alipay.api.AlipayApiException;
import com.alipay.api.AlipayClient;
import com.alipay.api.DefaultAlipayClient;
import com.alipay.api.internal.util.AlipaySignature;
import com.alipay.api.request.AlipayTradePagePayRequest;
import com.alipay.api.request.AlipayTradeQueryRequest;
import com.alipay.api.response.AlipayTradeQueryResponse;
import com.wnxy.admin.common.ResponseResult;
import com.wnxy.admin.config.AliPayConfig;
import com.wnxy.admin.dto.Alipay;
import com.wnxy.admin.entity.Recharge;
import com.wnxy.admin.service.IRechargeService;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.PropertySource;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.math.BigDecimal;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;

// plxgqc3596@sandbox.com | dubtfx9804@sandbox.com
@RestController
@RequestMapping("/alipay")
@PropertySource("classpath:application.yml")
public class AliPayController {
    private static final String GATEWAY_URL = "https://openapi-sandbox.dl.alipaydev.com/gateway.do";
    private static final String FORMAT = "JSON";
    private static final String CHARSET = "UTF-8";
    //签名方式
    private static final String SIGN_TYPE = "RSA2";

    @Value("${alipay.returnurl}")
    private String returnUrl;

    private final AliPayConfig aliPayConfig;
    private final IRechargeService rechargeServiceImpl;
    public AliPayController(AliPayConfig aliPayConfig, IRechargeService rechargeServiceImpl) {
        this.aliPayConfig = aliPayConfig;
        this.rechargeServiceImpl = rechargeServiceImpl;
    }

    @GetMapping("/pay") // &subject=xxx&traceNo=xxx&totalAmount=xxx
    public void pay(Alipay aliPay, HttpServletResponse httpResponse) throws Exception {
            // 1. 创建Client，通用SDK提供的Client，负责调用支付宝的API
            AlipayClient alipayClient = new DefaultAlipayClient(GATEWAY_URL, aliPayConfig.getAppId(),
                    aliPayConfig.getAppPrivateKey(), FORMAT, CHARSET, aliPayConfig.getAlipayPublicKey(), SIGN_TYPE);

            // 2. 创建 Request并设置Request参数
            Recharge payRecharge = new Recharge();
            payRecharge.setRechargeId(Long.valueOf(aliPay.getTraceNo()));
            payRecharge.setAmount(BigDecimal.valueOf(aliPay.getTotalAmount()));
            payRecharge.setCreateTime(new Date());
            payRecharge.setRechargeStatus(0);
            payRecharge.setPaymentMethod(aliPay.getSubject());



            AlipayTradePagePayRequest request = new AlipayTradePagePayRequest();  // 发送请求的 Request类
            request.setNotifyUrl(aliPayConfig.getNotifyUrl());
            cn.hutool.json.JSONObject bizContent = new JSONObject();

            String paySubject = payRecharge.getTransactionType() + "-" + payRecharge.getChargingCardNumber();
            bizContent.set("out_trade_no", payRecharge.getRechargeId());  // 我们自己生成的订单编号
            bizContent.set("total_amount", payRecharge.getAmount()); // 订单的总金额
            bizContent.set("subject", paySubject);   // 支付的名称
            bizContent.set("product_code", "FAST_INSTANT_TRADE_PAY");  // 固定配置
            request.setBizContent(bizContent.toString());

            // 3. 调用支付宝接口获取支付链接
            /*String payUrl = alipayClient.pageExecute(request).getBody(); // 调用SDK生成表单;*/
            String form = "";
            try {
                form = alipayClient.pageExecute(request).getBody(); // 调用SDK生成表单
            } catch (AlipayApiException e) {
                e.printStackTrace();
            }
            httpResponse.setContentType("text/html;charset=" + CHARSET);
            httpResponse.getWriter().write(form);// 直接将完整的表单html输出到页面
            httpResponse.getWriter().flush();
            httpResponse.getWriter().close();

            // 4. 将支付链接封装在响应数据中并返回给前端
            /* return ResponseResult.ok();*/
            request.setReturnUrl(returnUrl);
    }

    @PostMapping("/queryTrade")
    public void queryTrade(HttpServletResponse httpResponse) throws AlipayApiException {
        AlipayClient alipayClient = new DefaultAlipayClient(GATEWAY_URL, aliPayConfig.getAppId(),
                aliPayConfig.getAppPrivateKey(), FORMAT, CHARSET, aliPayConfig.getAlipayPublicKey(), SIGN_TYPE);
        AlipayTradeQueryRequest request = new AlipayTradeQueryRequest();
        request.setBizContent("{" +
                "  \"out_trade_no\":\"20150320010101001\"," +
                "  \"trade_no\":\"2014112611001004680 073956707\"," +
                "  \"query_options\":[" +
                "    \"trade_settle_info\"" +
                "  ]" +
                "}");
        AlipayTradeQueryResponse response = alipayClient.execute(request);
        if(response.isSuccess()){
            System.out.println("调用成功");
        } else {
            System.out.println("调用失败");
        }
    }

    /* @GetMapping("/callbackSync")
    public void syncCallback(HttpServletRequest request, HttpServletResponse response) {
        aliPayService.orderCallbackInSync(request, response);
    }*/

    // Tips: 此处POST接口,用于接收异步(Async)回调信息
    @PostMapping("callbackAsync")
    public ResponseResult payNotify(HttpServletRequest request) throws Exception {
        if (request.getParameter("trade_status").equals("TRADE_SUCCESS")) {
            System.out.println("=========支付宝异步回调========");

            Map<String, String> params = new HashMap<>();
            Map<String, String[]> requestParams = request.getParameterMap();
            for (String name : requestParams.keySet()) {
                params.put(name, request.getParameter(name));
                // System.out.println(name + " = " + request.getParameter(name));
            }

            String outTradeNo = params.get("out_trade_no");
            String gmtPayment = params.get("gmt_payment");
            String alipayTradeNo = params.get("trade_no");

            String sign = params.get("sign");
            String content = AlipaySignature.getSignCheckContentV1(params);
            boolean checkSignature = AlipaySignature.rsa256CheckContent(content, sign, aliPayConfig.getAlipayPublicKey(), "UTF-8"); // 验证签名

            Alipay aliPay = new Alipay();
            aliPay.setSubject(params.get("subject"));
            aliPay.setTraceNo(params.get("out_trade_no"));
            aliPay.setAlipayTraceNo(params.get("trade_no"));
            aliPay.setTotalAmount(Double.parseDouble(params.get("total_amount")));


            // 支付宝验签
            if (checkSignature) {
                // 验签通过
                System.out.println("交易名称: " + params.get("subject"));
                System.out.println("交易状态: " + params.get("trade_status"));
                System.out.println("支付宝交易凭证号: " + params.get("trade_no"));
                System.out.println("商户订单号: " + params.get("out_trade_no"));
                System.out.println("交易金额: " + params.get("total_amount"));
                System.out.println("买家在支付宝唯一id: " + params.get("buyer_id"));
                System.out.println("买家付款时间: " + params.get("gmt_payment"));
                System.out.println("买家付款金额: " + params.get("buyer_pay_amount"));

                // 查询订单
                Recharge payRecharge = rechargeServiceImpl.getById(aliPay.getTraceNo());
                payRecharge.setContactPhone(aliPay.getAlipayTraceNo());
                payRecharge.setCreateTime(new Date());
                payRecharge.setRechargeStatus(1);
                rechargeServiceImpl.updateById(payRecharge);

            }
        }
        return ResponseResult.ok();
    }

}
